SG4-12T-WW27 Side Pin G4 LED Disc Halogen Replacement Bulb, 2.4W, 20-25W Equal,Warm White 2700K, 5-Pack(Not Dimmable)

What a great little bulb!!! I have numerous round, recessed lights in my RV that were originally Halogen 40w Bulbs. The glass lens would get very hot along with the wall switch that turns them on. I purchased some other 40 LED Warm White bulbs of the same design but it appears that they are no longer available in the round shape. I was a little concerned that these being rated at a 20w equivalent may not put out enough light. Boy was I surprised!! These little lights are the perfect size for both the 40w and 20w Halogen recessed light fixtures and give out plenty of comfortable, warm white light. No more hot glass lens or wall switches!!! Each bulb came in its own little box and then five (5) bulb boxes placed into a larger box for shipping. All of the bulbs I purchased worked as designed. And, no polarity issues!!! Plugged them in and they all worked great. Thank you for a great product!!!

They are slightly big and may not fit may of the existing under cabinet lights. I had to come up with a creative way to make it work for me. Luckily it was easy and not a hazard. But the light is very good and bright and daylight. So you will see the right colors and contrast.

These LED's replaced some T3 G4 12v 20watt halogen side-pin bulbs used in the puck lights under my kitchen counter. The 20w halogens are rated at about 300 to 350 lumen and put out a slightly blueish light... very white. These LED's were slightly less bright, maybe because they're 2700k and are more yellowish. The brightness is acceptable. But if I were to do it again I'd get a brighter wafer light. I'm getting old and need more light when I cook. But, again, the brightness of these is acceptable. The one thing to note is that these side-pin G4 LED's fit nicely into my 1998 puck-style under-cabinet lights. That's something I just wasn't able to ascertain when searching for a replacement bulb. Anyway... they fit and they work.

Just installed them yesterday and they are perfect. To make them perfectly center we cut the prongs a little but they work without the trim. Looks fe the daylight color. Bright but not glaring. Now we have to buy 25 to 40 more to completely change out our motor home. They stay nice and cool. Just bought 10 more to add to the motor home. Uses less electric and brighter!

One out of 20 didn't work. We contacted retailer, has said he will replace but haven't received yet...will update as for the other 19, they are perfect. I took the advice of the other feedbacks on this item...to go with the lower count LED's The light is a touch brighter than the other bulbs but not enough to not tolerate. Still gives a nice ambient light but bright enough to read by if needed. As long as seller lives up to his agreement to replace the one bulb, we will be happy campers and will buy from them again to replace move bulbs

Hard to recommend if I have to send them back because of flickering lights. Product description says to not use if using an electronic transformer. Well, how the hell do I tell that? I'm replacing halogen lights in a showcase and it should work. If they didn't flicker, the bulbs have good brightness, fits a normal G4 base.

Flickering way too much to tolerate. I have under-cabinet "puck" lights. With one bulb in, it was OK. As soon as I added more, the flickering began. Tried combinations of different bulbs in the package, to see if it was just one bad bulb, but it wasn't. I've had good luck with the Satco S9542 series bulbs, which run about $9 each, and no luck with any of these cheaper "5-7-8 bulbs for $15-20" crap-packs (the ones where, instead of one large yellow element that lights up like the Satco, the picture shows 6-9 or more smaller yellow elements--see photos to compare). I guess, given the long life of LEDs, going forward I'm just going to buy the more expensive ones I know work, and figure if they last 5-10 years as they should the cost per bulb is not really an issue. Rated a 2 since as single bulbs, they seemed to work OK, but not with multiple bulbs on the same circuit. For that, I'd give 0-1 stars

I ordered these as a 5 Pack. They arrived promptly on Amazon Prime. All 5 Bulbs worked as decribed. They replaced my old Halogen bulbs which got very hot. These run much cooler. The reason my rating is low is that I installed them into an undercupboard Puck style cabinet fixture. My smaller halogen bulbs fit in no problem, but due to the size of these LED bulbs 1 of the tabs does not secure the bulb up all the way into the cabinet fixture.. There is also a bit of flicker, especially when turning on initially. If there was a better LED that was Dimmable, with Daylight 5K lumens I would buy it and avoid these bulbs.